package com.itheima.reggie.controller;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.apache.tomcat.util.digester.Digester;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;
import sun.security.util.Password;
import javax.servlet.http.HttpServletRequest;
import java.io.BufferedReader;
import java.nio.charset.StandardCharsets;
import java.time.LocalDateTime;


@RestController
@RequestMapping("/employee")
@Slf4j
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;


@PostMapping("/login")
public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){
//    // ①. 将页面提交的密码password进行md5加密处理, 得到加密后的字符串
    String password = employee.getPassword();
    DigestUtils.md5DigestAsHex(password.getBytes());
//    //②. 根据页面提交的用户名username查询数据库中员工数据信息
    LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
    lqw.eq(Employee::getUsername,employee.getUsername());
    Employee one = employeeService.getOne(lqw);
    System.out.println(one);
//    //③. 如果没有查询到, 则返回登录失败结果
    if (one == null){
        return R.error("登陆失败");
    }

//    //④. 密码比对，如果不一致, 则返回登录失败结果
    if (one.getPassword().equals(password)){
        return R.error("登陆失败");
    }

//    //⑤. 查看员工状态，如果为已禁用状态，则返回员工已禁用结果
    if (one.getStatus()==0){
        return R .error("该账号已经被禁用");
    }

//    //⑥. 登录成功，将员工id存入Session, 并返回登录成功结果
    request.getSession().setAttribute("employee",one.getId());
    return R.success(one);

}
@PostMapping("/logout")
public R logout(HttpServletRequest request){
    //清理Session中保存的当前登录员工的id
    request.getSession().removeAttribute("employee");
    return R.success("退出成功");
}

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());
        //密码加密
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //设置新增时间     当前时间
//        employee.setUpdateTime(LocalDateTime.now());//设置修改时间
//        employee.setCreateTime(LocalDateTime.now());//设置新增时间

        //获取当前用户登陆得id
//        Long employeeId = (Long) request.getSession().getAttribute("employee");//获取数据id
//        employee.setCreateUser(employeeId);
//        employee.setUpdateUser(employeeId);
            employeeService.save(employee);
        return R.success("添加成功");
}

    /**
     * 分页查询
     * @param page 当前查询页码
     * @param pageSize  展示页码数
     * @param name      员工姓名
     * @return
     */
    @GetMapping("/page")
public R<Page> page(int page ,int pageSize,String name){
    log.info("page:{},pageSize:{},name:{}",page,pageSize,name);
    //构造分页构造器
    Page page1 = new Page(page, pageSize);
    //构造条件构造器
    LambdaQueryWrapper<Employee> lqw = new LambdaQueryWrapper<>();
    //添加过滤器条件
    lqw.like(StringUtils.isNotEmpty(name),Employee::getName,name);
    //添加排序条件
    lqw.orderByDesc(Employee::getCreateTime);
    //执行查询
    employeeService.page(page1,lqw);
    return R.success(page1);
}

@PutMapping
public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
//    long employee1 = (long) request.getSession().getAttribute("employee");
//    employee.setUpdateTime(LocalDateTime.now());
//    employee.setUpdateUser(employee1);
    employeeService.updateById(employee) ;
    return R.success("员工信息修改成功");
    }


@GetMapping("/{id}")
    public R<Employee> getById(@PathVariable long id){//pathVariable   路径名和形参名一致
    log.info("根据id查询员工信息");
        Employee byId = employeeService.getById(id);
        if (byId!=null){
            return R.success(byId);
        }
        return R.error("没有查询员工id");

    }







}
